Matthew Petroff:
20ft Horn Antenna
Matthew Petroff:
20ft Horn Antenna
Matthew Petroff:
20ft Horn Antenna
Matthew Petroff:
20ft Horn Antenna
Matthew Petroff:
20ft Horn Antenna
Matthew Petroff:
Crawford Hill
Matthew Petroff:
Crawford Hill
Matthew Petroff:
Crawford Hill
Matthew Petroff:
20ft Horn Antenna
Matthew Petroff:
Crawford Hill Laboratory
Matthew Petroff:
Crawford Hill Laboratory
Matthew Petroff:
20ft Horn Antenna Plaque
Matthew Petroff:
7m Telescope
Matthew Petroff:
Crawford Hill Laboratory
Matthew Petroff:
Crawford Hill Laboratory
Matthew Petroff:
Crawford Hill Sign
Matthew Petroff:
20ft Horn Antenna
Matthew Petroff:
Crawford Plaque on 20ft Horn Antenna
Matthew Petroff:
Looking into Horn Antenna
Matthew Petroff:
20ft Horn Antenna
Matthew Petroff:
20ft Horn Antenna
Matthew Petroff:
Crawford Hill Laboratory
Matthew Petroff:
20ft Horn Antenna
Matthew Petroff:
20ft Horn Antenna Stairs
Matthew Petroff:
Motor Drives for 20ft Horn Antenna
Matthew Petroff:
20ft Horn Antenna
Matthew Petroff:
20ft Horn Antenna
Matthew Petroff:
Crawford Hill Laboratory Corridor
Matthew Petroff:
20ft Horn Antenna
Matthew Petroff:
Looking Down 20ft Horn Antenna from Receiver Cabin
